Production under fully purified conditions, minimize possible contamination in the process, effectively reduce impact of the possible contamination on the test resultThe inner wall is processed by DEPC, finished products are sterilized by Co60, sterile standard can be reached 10-6, eliminate thoroughly the impact of RNA enzyme on the testApplication of unique additive technology will not affect activity of Taq enzyme used in test of nucleic acid, and effectively eliminate the interference of hemoglobin in eryrhrocyte to the test